International audience
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September 1, 2010 (v1)Journal articleUploaded on: December 3, 2022
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2007 (v1)Conference paper
SF2A -Semaine de l'Astrophysique Française, eds. J. Bouvier, A. Chalabaev and C. Charbonnel, 65
Uploaded on: December 3, 2022 -
2007 (v1)Conference paper
in Extreme Solar Systems, n/a, (2007)
Uploaded on: December 3, 2022 -
June 9, 2018 (v1)Conference paper
Circumstellar environments are now routinely observed by dedicated high-contrast imagers on large, ground-based observatories. These facilities combine extreme adaptive optics and coronagraphy to achieve unprecedented sensitivities for exoplanet detection and spectral characterization. However, non-common path aberrations (NCPA) in these...
Uploaded on: December 4, 2022 -
July 2010 (v1)Conference paper
In the context of the SPHERE planet finder project, we further develop and characterize a recently proposed method for the efficient direct detection of exoplanets from the ground using spectral and angular differential imaging. The method, called ANDROMEDA, combines images appropriately into "pseudo-data", then uses all of them in a...
Uploaded on: December 4, 2022 -
July 2010 (v1)Conference paper
SPHERE is a second generation instrument for the Very Large Telescope (VLT) which will aim at directly detecting the intrinsic flux of young giant exoplanets thanks to a dedicated extreme adaptive optics system and coronagraphs. Exoplanet detection in the near-infrared will be performed in parallel with an integral field spectrograph and a...
Uploaded on: December 4, 2022 -
2017 (v1)Journal article
This paper presents the sharpest near‐IR images of the massive cluster R136 to date, based on the extreme adaptive optics of the SPHERE focal instrument implemented on the ESO Very Large Telescope and operated in its IRDIS imaging mode. The crowded stellar population in the core of the R136 starburst compact cluster remains still to be...
Uploaded on: December 4, 2022 -
2022 (v1)Journal article
Coronagraphic imaging of exoplanets and circumstellar environments using ground-based instruments on large telescopes is intrinsically limited by speckles induced by uncorrected aberrations. These aberrations originate from the imperfect correction of the atmosphere by an extreme adaptive optics system; from static optical defects; or from...
Uploaded on: December 3, 2022 -
2006 (v1)Conference paper
IAUC200, Direct Imaging of Exoplanets: Science & Techniques. Proceedings of the IAU Colloquium #200, eds. C. Aime and F. Vakili, Cambridge, UK: Cambridge University Press n/a, pp. 317-322 (2006)
Uploaded on: December 3, 2022 -
April 2016 (v1)Journal article
We present new near-infrared photometric measurements of the core of the young massive cluster NGC3603 obtained with extreme adaptive optics. The data were obtained with the SPHERE instrument mounted on ESO's Very Large Telescope, and cover three fields in the core of this cluster. We applied a correction for the effect of extinction to our...
Uploaded on: February 28, 2023 -
January 2020 (v1)Journal article
International audience
Uploaded on: December 4, 2022 -
2020 (v1)Journal article
Context: Circumstellar disks and self-luminous giant exoplanets or companion brown dwarfs can be characterized through direct-imaging polarimetry at near-infrared wavelengths. SPHERE/IRDIS at the Very Large Telescope has the capabilities to perform such measurements, but uncalibrated instrumental polarization effects limit the attainable...
Uploaded on: September 28, 2024 -
December 2014 (v1)Journal article
International audience
Uploaded on: December 4, 2022